- Matthew William Kenzie (University of Warwick (GB))
- Olaf Behnke (Deutsches Elektronen-Synchrotron (DE))
- Louis Lyons (Imperial College (GB))
- Hans Peter Dembinski (Max-Planck-Institute for Nuclear Physics, Heidelberg)
When an observable density is a superposition of signal and background PDFs that each factorise in a ''discriminant'' and a ''control'' variable, sWeights allow one to determine the signal density in the control variable using information from only the discriminant variable.
After reviewing the basics of the method and casting the formalism into the framework of orthogonal functions, the talk...
Fits of weighted events, for example to correct for acceptance effects or to statistically subtract background events using sWeights, have recently seen increasing use in the flavour physics community. This talk will discuss the determination of parameters and their uncertainties using weighted events, with particular focus on unbinned fits of weighted data.
Global fits are an indispensable tool in the search for New Physics (NP). On the one hand, they can provide interpretations of measurements that deviate from Standard Model (SM) predictions, and on the other hand, they allow using the wealth of experimental data for testing the viability of NP models. Being "global" means that these fits include hundreds of observables, whose theoretical...